SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

3 Months Ended

Mar. 31, 2013

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]

Revenue by segment

The composition of our revenues by segment is as follows:

	Three Months Ended
	March 31,
	2013			2012
Performance materials		50	%		53	%
Construction technologies		18	%		22	%
Energy services		31	%		23	%
Transportation		4	%		5	%
Intersegment sales		-3	%		-3	%
		100	%		100	%